QGIS/python/plugins/processing/gui/MultipleInputPanel.py
Nyall Dawson 1f2ea024f2 Allow adding layers which aren't open in the project to processing
parameters which accept lists of multiple layers

E.g. build vrt alg, merge vector layers alg

Otherwise you may need to load 100's of layers temporarily into
a project to perform algs on them
2017-08-17 03:52:40 +10:00

92 lines
3.2 KiB
Python

# -*- coding: utf-8 -*-
"""
***************************************************************************
MultipleInputPanel.py
---------------------
Date : August 2012
Copyright : (C) 2012 by Victor Olaya
Email : volayaf at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os
from qgis.core import QgsProcessing
from qgis.PyQt import uic
from qgis.PyQt.QtCore import pyqtSignal
''
from processing.gui.MultipleInputDialog import MultipleInputDialog
from processing.gui.MultipleFileInputDialog import MultipleFileInputDialog
pluginPath = os.path.split(os.path.dirname(__file__))[0]
WIDGET, BASE = uic.loadUiType(
os.path.join(pluginPath, 'ui', 'widgetBaseSelector.ui'))
class MultipleInputPanel(BASE, WIDGET):
selectionChanged = pyqtSignal()
def __init__(self, options=None, datatype=None):
super(MultipleInputPanel, self).__init__(None)
self.setupUi(self)
self.leText.setEnabled(False)
self.leText.setText(self.tr('0 elements selected'))
self.btnSelect.clicked.connect(self.showSelectionDialog)
self.options = options
self.datatype = datatype
self.selectedoptions = []
def setSelectedItems(self, selected):
# No checking is performed!
self.selectedoptions = selected
self.leText.setText(
self.tr('{0} elements selected').format(len(self.selectedoptions)))
def showSelectionDialog(self):
if self.datatype == QgsProcessing.TypeFile:
dlg = MultipleFileInputDialog(self.selectedoptions)
else:
dlg = MultipleInputDialog(self.options, self.selectedoptions, datatype=self.datatype)
dlg.exec_()
if dlg.selectedoptions is not None:
self.selectedoptions = dlg.selectedoptions
self.leText.setText(
self.tr('{0} elements selected').format(len(self.selectedoptions)))
self.selectionChanged.emit()
def updateForOptions(self, options):
selectedoptions = []
selected = [self.options[i] if isinstance(i, int) else i for i in self.selectedoptions]
for sel in selected:
if isinstance(sel, int):
try:
idx = options.index(sel)
selectedoptions.append(idx)
except ValueError:
pass
else:
selectedoptions.append(sel)
self.options = options
self.setSelectedItems(selectedoptions)